Abstract
The surface heterogeneity is more important than lateral interactions in the adsorption of solutions, which can be evaluated by two numerical methods known as CAEDMON and Regularization Procedure (RP). In the Caedmon method, the overall adsorption isotherm is calculated on the basis of an arbitrarily chosen distribution f(ɛ). CAEDMON and RP are extensively tested on simulated adsorption isotherm data corresponding with log-normal and bi-gaussian distribution functions. The quality of recalculated distribution functions is determined to a large extent by the following parameters: (1) the smoothing parameter, (2) the number of knot points, m, on the integration interval, and (3) the boundaries of the integration interval. Provided the overall isotherm and the local isotherm are known, the free energy distribution f (ɛ) can be determined most successfully with the RP method. Heterogeneity analysis from measured adsorption isotherms may be a powerful tool for the study of differences in f (ɛ) obtained for different adsorbate systems and surface treatments, such as activation or graphitization, followed by analyzing adsorption isotherms of a selected adsorbate system and monitoring the relative changes in f(ɛ).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
